Waves
What does wavelength mean?
The distance from one crest to the next.
What does rotation mean?
A complete spin on an axis (24 hours)
What does food chain mean?
The path that energy and nutrients follow in an ecosystem.
What does energy mean?
The ability to do anything.
What does crust mean?
This is the layer we stand on. It is the thinnest layer. The crust is 70 km on land and 5km on specific ocean floors. The crust is made up of silica, alumina, lime, magnesia, and iron oxide (rust)
What does amplitude mean?
The distance between the crest and the midpoint of a wave.
What does revolution mean?
One complete trip of one object around another object (1 year)
What does food web mean?
The overlapping food chains in an ecosystem.
What does kinetic energy mean?
The energy in a moving object.
What does mantle mean?
This is the thickest layer. It is 3,000 km in thickness. This layer is some sold and some liquid. It's part liquid because it has rocks which melt and create magma and causes a volcano. This layer causes lots of motion. Mantle is why plate tectonics move or crash into each other.
What does frequency mean?
The amount of vibration that pass a point in a specific amount of time.
What does Lunar eclipse mean?
What does Biotic Factors mean?
The living things in an ecosystem such as animals, plants, or bacteria.
What does potential energy mean?
The energy that is stored in an object.
What does outer core mean?
This layer is all liquid. The temperature is 5,000 degrees Celsius. Most of it is made of iron and nickel. It's liquid because the iron and nickel melts. Without this layer the earth wouldn't have a magnetic field, and the earth wouldn't have an atmosphere without the magnetic field.
What does echo mean?
A repetition of a specific sound produced by reflection of sound waves from a surface.
What does solar eclipse mean?
A blocking of the sun's light that happens when earth passes through the moon's shadow.
What does Abiotic Factors mean?
the nonliving things in an ecosystem like a rock.
Name all 4 kinds of potential energy?
Elastic, Electric, Nuclear, and chemical
What does the inner core mean?
This is the hottest layer, 7,000 degrees Celsius. The sun hits it directly, but it's a solid because of the pressure from all the other layers.
What does echolocation mean?
The process of finding an object by using reflected sound.
What does eclipse mean?
An obscuring of the light from one celestial body by the passage of another between it and the observer or between it and its source of illumination.
What is the order of the Food Chain?
Producer, Herbivores, Carnivores, Omnivores, and Decomposers.
Energy can be what from one form to another?
converted
What layers have people not been able to reach?
Mantle, outer core, and inner core